I used to share fractal art that I created in Photoshop, so I'm feeling nostalgic.
This app seems as though it makes the creation process much easier.
Here's a gallery of some of their art.
"Unleash your inner artist with complex color gradients to smoothly tint and shade your fractal shapes, two light sources for glossy reflections, and novel textures. The combinations are endless: supersmooth or wildly chaotic, metallic sheen or pearly white, subtle shades, stark monochrome or screaming supergloss. Or upgrade to Pro to access almost 100 parameters and controls."